60% increased Defences from Equipped Shield
Attack Skills deal 15% increased Damage while holding a Shield
6% increased Attack Speed while holding a Shield 
Precise Interception is a notable passive skill that grants increased attack damage, attack speed and additional chance to block attack damage with a shield equipped. It also grants increased armour rating, evasion rating, and energy shield from equipped shields.
- Mark_GGG (March 13, 2013). "Increased Shield Defenses?". Official Path of Exile Forums. Retrieved July 19, 2013.